uicollectionviewflowlayout
UICollectionViewFlowLayout estimatedItemSize does not work properly with iOS12 though it works fine with iOS 11.*
In my case, I solved this by explicitly adding the following constraints to the cell’s contentView. class Cell: UICollectionViewCell { // … override func awakeFromNib() { super.awakeFromNib() // Addresses a separate issue and prevent auto layout warnings due to the temporary width constraint in the xib. contentView.translatesAutoresizingMaskIntoConstraints = false // Code below is needed to … Read more